<script setup>
import { User, Lock } from '@element-plus/icons-vue'
import { ref, watch } from 'vue'
import { userRegisterService, userLoginService } from '@/api/user.js'
import { useUserStore } from '@/stores'
import { useRouter } from 'vue-router'
const isRegister = ref(false)
const form = ref()
//整个的用于提交的form数据对象
const formModel = ref({
    username: '',
    password: '',
    repassword: ''
})
//整个表单的校验规则
//1、非空校验 required:true  message:消息提示 trigger触发校验的时机 blur change

//4、自定义校验
// validator:(rules,value,callback)
//rule 当前校验相关的规则
// value 所校验的表单目前的表单值
//callback 无论成功与否，都需要callback回调
//callback()校验成功
// callback(new Error(错误信息))校验失败
const rules = {
    username: [
        { required: true, message: '请输入用户名', trigger: 'blur' },
        { min: 5, max: 10, message: '用户名必须是5-10位的字符', trigger: 'blur' }
    ],
    password: [
        { required: true, message: '请输入密码', trigger: 'blur' },
        {
            pattern: /^\S{6,15}$/,
            message: '密码必须是6-15位的非空字符',
            trigger: 'blur'
        }
    ],
    repassword: [
        { required: true, message: '请再次输入密码', trigger: 'blur' },
        {
            pattern: /^\S{6,15}$/,
            message: '密码必须是6-15的非空字符',
            trigger: 'blur'
        },
        {
            validator: (rule, value, callback) => {
                if (value !== formModel.value.password) {
                    callback(new Error('两次输入密码不一致!'))
                } else {
                    callback()
                }
            },
            trigger: 'blur'
        }
    ]
}
const register = async () => {
    //ElMessage.success('注册了')
    // 注册成功之前，先进行校验，校验成功 → 请求，校验失败 → 自动提示
    await form.value.validate()
    await userRegisterService(formModel.value)
    ElMessage.success('注册成功')
    isRegister.value = false
}
const userStore = useUserStore()
const router = useRouter()
const login = async () => {
    await form.value.validate()

    const res = await userLoginService(formModel.value)
    console.log('开始登录', res)
    userStore.setToken(res.data.token)
    ElMessage.success('登录成功')
    router.push('/')
}
//切换的时候重置
watch(isRegister, () => {
    formModel.value = {
        username: '',
        password: '',
        repassword: ''
    }
})
</script>

<template>
    <el-row class="login-page">
        <!-- 
        el-row表示一行，一行分成24份，el-col表示列
        1、:span='12'，表示在一行中，占12份（50%）
        2、:span='6',表示在一行中，占6份（25%）
        3、:offset='3' 代表在一行中，左侧margin份数
         -->
        <!-- <el-col :span="12" class="bg"></el-col> -->
        <!-- 注册相关表单 -->
        <el-col :span="6" :offset="12" class="form">
            <el-form :model="formModel" :rules="rules" ref="form" size="large" autocomplete="off" v-if="isRegister">
                <el-form-item>
                    <h1 style="color: white;">注册</h1>
                </el-form-item>
                <el-form-item prop="username">
                    <el-input v-model="formModel.username" :prefix-icon="User" placeholder="请输入用户名"></el-input>
                </el-form-item>
                <el-form-item prop="password">
                    <el-input v-model="formModel.password" :prefix-icon="Lock" type="password"
                        placeholder="请输入密码"></el-input>
                </el-form-item>
                <el-form-item prop="repassword">
                    <el-input v-model="formModel.repassword" :prefix-icon="Lock" type="password"
                        placeholder="请输入再次密码"></el-input>
                </el-form-item>
                <el-form-item>
                    <el-button @click="register" class="button" type="primary" auto-insert-space>
                        注册
                    </el-button>
                </el-form-item>
                <el-form-item class="flex">
                    <el-link type="info" :underline="false" @click="isRegister = false">
                        <p style="color: red;">← 返回</p>
                    </el-link>
                </el-form-item>
            </el-form>

            <el-form :model="formModel" :rules="rules" ref="form" size="large" autocomplete="off" v-else>
                <el-form-item>
                    <h1 style="color:white;">登录</h1>
                </el-form-item>
                <el-form-item prop="username">
                    <el-input v-model="formModel.username" :prefix-icon="User" placeholder="请输入用户名"></el-input>
                </el-form-item>
                <el-form-item prop="password">
                    <el-input v-model="formModel.password" name="password" :prefix-icon="Lock" type="password"
                        placeholder="请输入密码"></el-input>
                </el-form-item>
                <el-form-item class="flex">
                    <div class="flex">
                        <el-checkbox>
                            <p>记住我</p>
                        </el-checkbox>
                        <el-link type="primary" :underline="false">忘记密码？</el-link>
                    </div>
                </el-form-item>
                <el-form-item>
                    <el-button @click="login" class="button" type="primary" auto-insert-space>登录</el-button>
                </el-form-item>
                <el-form-item class="flex">
                    <el-link type="info" :underline="false" @click="isRegister = true">
                        <p style="color: aqua;">注册 →</p>
                    </el-link>
                </el-form-item>
            </el-form>
        </el-col>

    </el-row>
</template>

<style lang="scss" scoped>
.login-page {
    height: 100vh;
    background-color: #fff;
    //background-color: aqua;
    background: url('@/assets/login_bg2.jpg') no-repeat center / cover;
    // .bg {
    //     background: //url('@/assets/logo2.png') no-repeat 80% center / 240px auto,
    //         url('@/assets/login_bg2.jpg') no-repeat center / cover;
    //     //url('@/assets/login_bg2.jpg')no-repeat center / contain;
    //     border-radius: 0 20px 20px 0;
    // }

    .form {
        //background-color: white;
        display: flex;
        flex-direction: column;
        justify-content: center;
        //@debugalign-items: center;
        user-select: none;

        .title {
            margin: 0 auto;
        }

        .button {
            width: 100%;
        }

        .flex {
            width: 100%;
            display: flex;
            justify-content: space-between;
        }
    }
}
</style>
